{"id":"ALSA-2021:0558","summary":"Important: kernel security, bug fix, and enhancement update","details":"The kernel packages contain the Linux kernel, the core of any Linux operating system.\n\nSecurity Fix(es):\n\n* kernel: locking issue in drivers/tty/tty_jobctrl.c can lead to an use-after-free (CVE-2020-29661)\n\n* kernel: performance counters race condition use-after-free (CVE-2020-14351)\n\n* kernel: ICMP rate limiting can be used for DNS poisoning attack (CVE-2020-25705)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nBug Fix(es):\n\n* Final fixes + drop alpha_support flag requirement for Tigerlake (BZ#1882620)\n\n* OVS complains Invalid Argument on TCP packets going into conntrack (BZ#1892744)\n\n* BUG: using smp_processor_id() in preemptible [00000000] code: handler106/3082 (BZ#1893281)\n\n* Icelake performance - add  intel_idle: Customize IceLake server support  to AlmaLinux-8 (BZ#1897183)\n\n* [mlx5] IPV6 TOS rewrite flows are not getting offloaded in HW (BZ#1897688)\n\n* AlmaLinux 8.3 SAS - multipathd fails to re-establish paths during controller random reset (BZ#1900112)\n\n* AlmaLinux8.3 Beta - AlmaLinux8.3 hangs on dbginfo.sh execution, crash dump generated (mm-) (BZ#1903019)\n\n* Win10 guest automatic reboot after migration in Win10 and WSL2 on AMD hosts (BZ#1905084)\n\n* block, dm: fix IO splitting for stacked devices (BZ#1905136)\n\n* Failed to hotplug scsi-hd disks (BZ#1905214)\n\n* PCI quirk needed to prevent GPU hang (BZ#1906516)\n\n* AlmaLinux8.2 - various patches to stabilize the OPAL error log processing and the powernv dump processing (ESS) (BZ#1907301)\n\n* pmtu not working with tunnels as bridge ports and br_netfilter loaded (BZ#1907576)\n\n* [ThinkPad X13/T14/T14s AMD]: Kdump failed (BZ#1907775)\n\n* NFSv4 client improperly handles interrupted slots (BZ#1908312)\n\n* NFSv4.1 client ignores ERR_DELAY during LOCK recovery, could lead to data corruption (BZ#1908313)\n\n* [Regression] AlmaLinux8.2 - [kernel 148.el8] cpu (sys) time regression in SAP HANA 2.0 benchmark benchInsertSubSelectPerformance (BZ#1908519)\n\n* AlmaLinux8: kernel-rt: kernel BUG at kernel/sched/deadline.c:1462! (BZ#1908731)\n\n* SEV VM hang at efi_mokvar_sysfs_init+0xa9/0x19d during boot (BZ#1909243)\n\n* C6gn support requires \"Ensure dirty bit is preserved across pte_wrprotect\" patch (BZ#1909577)\n\n* [Lenovo 8.3 & 8.4 Bug] [Regression] No response from keyboard and mouse when boot from tboot kernel (BZ#1911555)\n\n* Kernel crash with krb5p (BZ#1912478)\n\n* [AlmaLinux8] Need additional backports for FIPS 800-90A DRBG entropy seeding source (BZ#1912872)\n\n* [Hyper-V][AlmaLinux-8] Request to included a commit that adds a timeout to vmbus_wait_for_unload (BZ#1913528)\n\n* Host becomes unresponsive during stress-ng --cyclic test rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: (BZ#1913964)\n\n* AlmaLinux8.4: Backport upstream RCU patches up to v5.6 (BZ#1915638)\n\n* Missing mm backport to fix regression introduced by another mm backport (BZ#1915814)\n\n* [Hyper-V][AlmaLinux-8]video: hyperv_fb: Fix the cache type when mapping the VRAM Edit (BZ#1917711)\n\n* ionic 0000:39:00.0 ens2: IONIC_CMD_Q_INIT (40) failed: IONIC_RC_ERROR (-5) (BZ#1918372)\n\n* [certification] mlx5_core depends on tls triggering TAINT_TECH_PREVIEW even if no ConnectX-6 card is present (BZ#1918743)\n\n* kvm-almalinux8.3 [AMD] - system crash observed while powering on virtual machine with attached VF interfaces. (BZ#1919885)\n\nEnhancement(s):\n\n* [Mellanox 8.4 FEAT] mlx5: Add messages when VF-LAG fails to start (BZ#1892344)","modified":"2026-02-04T03:29:18.119974Z","published":"2021-02-16T07:36:08Z","related":["CVE-2020-14351","CVE-2020-25705","CVE-2020-29661"],"references":[{"type":"REPORT","url":"https://vulners.com/cve/CVE-2020-14351"},{"type":"REPORT","url":"https://vulners.com/cve/CVE-2020-25705"},{"type":"REPORT","url":"https://vulners.com/cve/CVE-2020-29661"}],"affected":[{"package":{"name":"kernel-tools-libs-devel","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-tools-libs-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-240.15.1.el8_3"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2021:0558.json"}}],"schema_version":"1.7.3"}